A display device includes: an insulating substrate having flexibility and including a bent portion that is bent at 90 degrees or more outside a display area provided with an image display function; and a spacer disposed inside the bent portion and including a curved area around which the bent portion is wrapped and a plane area facing the insulating substrate, wherein the insulating substrate includes a flat portion adjacent to the bent portion and provided so as to face the plane area.

According to one embodiment, a light-emitting element includes a substrate, a first electrode, a second electrode, and a light-emitting layer. The substrate is light-transmissive. The second electrode is provided between the first electrode and a portion of the substrate. The second electrode is light-transmissive. A light-emitting layer is provided between the first electrode and the second electrode. The substrate includes a first region and a second region. The first region overlaps at least a portion of the light-emitting layer in a first direction, the first direction is from the second electrode toward the first electrode. The second region is provided around the first region along a plane perpendicular to the first direction. The substrate has an opening provided in at least a portion of the second region.

The present invention relates to: a compound for an organic optoelectronic diode, represented by a combination of chemical formulas 1 and 2; an organic optoelectronic diode comprising the same; and a display device comprising the organic optoelectronic diode. The detailed contents of formulas 1 and 2 are the same as those defined in the specification.

An oxadiazole dye for use as an organic photosensitizer. The oxadiazole dye comprising donor-π-spacer-acceptor type portions in which at least one of an oxadiazole isomer acts as a π-conjugated bridge (spacer), a biphenyl unit acts as an electron-donating unit, a carboxyl group act as an electron acceptor group, and a cyano group acts as an anchor group. An optional thiophene group acts as part of the π-conjugated bridge (spacer). The dye for use as organic photosensitizers in a dye-sensitized solar cell and in photodynamic therapies. Computational DFT and time dependent DFT (TD-DFT) modeling techniques showing Light Harvesting Efficiency (LHE), Free Energy for Electron Injection (ΔG.sup.inject), Excitation Energies, and Frontier Molecular Orbitals (FMOs) indicate that the series of dye comprise a more negative ΔG.sup.inject and a higher LHE value; resulting in a higher incident photon to current efficiency (IPCE).

Platinum, palladium, and gold tetradentate metal complexes of Formulas I and II including indoloacridine.

##STR00001##

The complexes are suitable for use as phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.

The present invention relates to: a composition for an organic photoelectronic element comprising at least one type of a first chemical compound represented by chemical formula 1 and at least one type of a second chemical compound represented by chemical formula 2; an organic photoelectronic element comprising the same; and a display apparatus comprising said organic photoelectronic element. Chemical formulas 1 and 2 are described in the specification of the present invention.

An organic light-emitting display apparatus, including: a first electrode disposed on the substrate; a pixel defining layer covering an edge of the first electrode; a residual layer disposed on the first electrode and the pixel defining layer, the residual layer comprising a fluoropolymer; a first organic functional layer comprising a first light emitting layer disposed on the residual layer on the first electrode; and a second electrode disposed on the first organic functional layer.

The present specification provides a compound having a spiro structure, and an organic light emitting device including the same.

An embodiment of the present invention provides an organic compound represented by following Formula:

##STR00001##

wherein each of X.sub.1 to X.sub.5 is independently selected from a carbon atom (C) or a nitrogen atom (N), and at least two or three of X.sub.1 to X.sub.5 are N, wherein each of R.sub.1 and R.sub.2 is independently selected from a substituted or non-substituted aryl group or a substituted or non-substituted heteroaryl group, and “a” is an integer between zero (0) to 3, and wherein each of L.sub.1 and L.sub.2 is independently selected from a substituted or non-substituted arylene group or a substituted or non-substituted heteroarylene group, and “b” is zero (0) or 1. The present invention also provides an organic light emitting diode and an organic light emitting display device including the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improves a current efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the same.

An optoelectronic device includes a flexible organic light-emitting diode having a main extension plane, a first retaining element having a first major surface formed in accordance with a bent surface, and a second retaining element, wherein the OLED is arranged between the first retaining element and the second retaining element, and the OLED is mechanically fixed by the first retaining element and/or the second retaining element such that the main extension plane of the OLED is formed in accordance with the bent surface.